Both moissanite and cubic zirconia are very popular and excellent diamond alternatives, which are popular gemstones for engagement rings and wedding bands. They have a similar appearance to diamonds but cost much less than diamonds. So what’s the difference between moissanite and cubic zirconia? cubic zirconia vs moissanite, which to choose? Is moissanite better than cubic zirconia? Moissanite vs real diamond vs cubic zirconia, what are their characteristics? In this article, we will compare them side by side.
What is the cubic zirconia?
Similar to synthetic moissanite, to define cubic zirconia is easy. Cubic zirconia is also a laboratory-made artificial gemstone. Its composition is zirconium dioxide. Cubic zirconia, also known as CZ, has similar physical and optical properties to diamonds. However, because it is a laboratory-made gemstone, the cost is much lower than that of diamonds, and it is loved by many consumers. The cubic zirconia gemstone meaning is generally considered to be clear, pure and powerful, which symbolizes a simple and noble beauty, and is often used to symbolize loyalty, love and commitment.
Understanding Moissanite, Diamonds, and Cubic Zirconia
Although moissanite and cubic zirconia are both alternatives to diamond, their properties are very similar but not exactly the same. Moissanite diamonds and cubic zirconia are both popular gemstones for various jewelry. What are the differences between moissanite diamonds vs cubic zirconia? We compare diamond and moissanite side by side here.
- Diamond: Diamond has a hardness of 10 and is considered the hardest substance in nature. The high refractive index and strong scattering properties allow diamonds to produce unique “fire” and “sparkling” effects under light. In addition, diamonds are extremely durable and not easily scratched or damaged. They symbolize eternity and fidelity and are widely used in high-end jewelry such as wedding rings and commemorative jewelry. Generally speaking, natural diamond resources are relatively limited, so they are very precious and have a high collection value.
- Moissanite: Moissanite is a gemstone whose main component is silicon carbide. Natural moissanite is rare, and most of the moissanite sold on the market is laboratory-synthesized. Moissanite is very close to diamond in hardness, very durable and suitable for daily wear. Moissanite’s high hardness and strong fire look like diamond, making it an ideal choice for wedding ringsand other high-end jewelry.
- Cubic Zirconia: Unlike diamond and moissanite, cubic zirconia, which is very similar to diamond and is popular, is a laboratory gemstone and does not exist naturally. What is a cubic zirconia made of? Cubic zirconia is a common synthetic gemstone made of zirconium dioxide. Cubic zirconia refractive index is high and allows a strong luster, close to the fire of diamond. Although the hardness of cubic zirconia is not as good as diamond and moissanite, it is wear-resistant enough for daily wear.

Cubic Zirconia vs Moissanite - Origins and Historical Context
Moissanite vs cubic zirconia, both are artificial gemstones, what are the big differences in their history and origins?
Cubic zirconia was first developed by Soviet scientists in 1976. It is a crystalline form of ZrO₂ formed after high temperature treatment. Due to its high refractive index and good optical properties, cubic zirconia is widely used in jewelry. In the late 1970s, cubic zirconia quickly became a popular alternative, especially in the jewelry market. Due to its relatively low price and bright appearance, it attracted many consumers.
Moissanite is a natural mineral composed of silicon and carbide (SiC) first discovered in meteorites in 1893. Because moissanite in nature is very rare, modern moissanite is mainly produced by synthetic methods. It was not until the 1990s that its synthetic version entered the market and became popular as a substitute for diamonds.
Cubic Zirconia vs Moissanite - Physical Properties Comparison
Cz vs moissanite, the physical properties of the two are very similar but not exactly the same. The difference between moissanite and Cz can be roughly divided into the following aspects.
Cubic zirconia: cubic zirconia mohs scale is 8.5. The hardness of cz is higher than most substances in nature, and it is relatively hard and durable. The cubic zirconia index of refraction is 2.15 to 2.18, so it has a high optical refractive power. Cubic zirconia is usually colorless and transparent, with good clarity and a reflectivity of 40%, which can well reflect light projected from all directions.
Moissanite: The hardness of moissanite can reach 9.25. It is the second hardest gemstone after diamond. It is very hard and not easy to scratch. Moissanite has a refractive index of 2.65 to 2.69, and its fire and luster effects are more significant than those of cubic zirconia. Many people have questions about does moissanite come in colors. In fact, moissanite also comes in many different colors, but most of the moissanite used in jewelry is colorless and transparent, which can show more brilliance and color changes. The reflectivity of moissanite is as high as 90% or higher, and its luster is even brighter.
Cubic Zirconia vs Moissanite - Visual Characteristics
Cubic Zirconia (CZ) is a popular choice among diamond simulants vs cubic zirconia due to its wide range of color options, from colorless to deeper hues. As a CZ gemstone, it provides excellent quality cubic zirconia with high clarity, effectively mimicking the appearance of natural diamonds.
Moissanite stands out when discussing moissanite vs CZ, showcasing impressive fire and dispersion. Typically colorless or slightly yellow, it serves as a sought-after diamond simulant that offers a more brilliant visual effect than cubic zirconia, appealing to those seeking exceptional quality.

Cubic Zirconia vs Moissanite - Price Comparison
Cubic Zirconia (CZ) is known for being an affordable alternative to diamonds. The price of 1 carat cubic zirconia typically ranges from $20 to $50, making it accessible for many consumers. When considering what is high quality cubic zirconia and cubic zirconia value, it’s essential to look for clarity and cut. The biggest cubic zirconia stones can also be found, offering great size at a fraction of the cost of natural diamonds. Overall, how much does cubic zirconia cost makes it a popular choice in jewelry.
Moissanite is crafted from silicon carbide, which leads to its distinctive brilliance. In the moissanite versus cubic zirconia price comparison, moissanite is generally more expensive, with how much is 1 carat moissanite worth ranging from $300 to $600. While is moissanite cheaper than diamond? Yes, it is significantly less costly than diamonds but more expensive than CZ. The combination of quality and price makes moissanite an appealing choice for those seeking a durable and beautiful gemstone.
Cubic Zirconia vs Moissanite - Best Uses and Applications
Cubic Zirconia (CZ) is widely used in jewelry due to its affordability and versatility. The meaning of cubic zirconia lies in its ability to mimic diamonds, making it a popular choice for the best cubic zirconia engagement rings and wedding rings. Its durability and brilliance allow it to be used in various settings, providing an attractive alternative to natural stones. When comparing moissanite vs CZ, CZ stands out for budget-friendly options in jewelry design.
Moissanite is celebrated for its exceptional brilliance and durability, making it ideal for fine jewelry. In discussions of moissanite vs CZ, moissanite typically offers superior fire and visual appeal. It is often compared with other gemstones, such as white sapphire vs CZ, and is sometimes chosen over moissanite vs morganite due to its hardness and longevity. To determine how to tell if a ring is moissanite, look for its unique sparkle and refractive qualities, which distinguish it from other stones.
Cubic Zirconia vs Moissanite - Optical Characteristics
Cubic Zirconia (CZ) is known for its high optical characteristics, including excellent brilliance and clarity. With a refractive index of approximately 2.15 to 2.18, CZ reflects light beautifully, making it a popular choice for jewelry. Its optical properties allow it to closely mimic diamonds, providing an attractive yet affordable alternative. While CZ has a good fire and sparkle, it lacks some of the unique qualities found in natural stones, leading many to explore options like what is genuine moissanite.
Moissanite is renowned for its extraordinary optical characteristics, often outperforming diamonds and CZ. With a higher refractive index of about 2.65 to 2.69, it produces remarkable brilliance and fire, creating a stunning visual effect. The combination of its hardness and optical brilliance positions moissanite as a superior choice for those seeking a durable and radiant gemstone.
Conclusion - Which Diamond alternatives to Choose
By comparing cubic zirconia vs moissanite in all aspects, we found that moissanite is better in fire refraction, hardness and durability. These properties allow moissanite to better reflect light, making the gem look more sparkling. At the same time, it is not easy to be scratched, which is suitable for daily jewelry. The price of cubic zirconia is more affordable than moissanite, and it also offers a wider range of color options and extremely high transparency and clarity, suitable for a variety of design styles. If you pursue durability and value brilliance and visual effects, then moissanite will be a better choice. If you only wear jewelry occasionally, have a limited budget and like a variety of colors, then cubic zirconia is your best gem choice.
FAQs About Cubic Zirconia vs Moissanite
Is cubic zirconia real or fake? Is cubic zirconia good?
Cubic zirconia (CZ) is a synthetic stone, so it can’t be considered “fake” in comparison to natural gemstones. It is a good alternative to diamonds due to its brilliance and affordability.
Is moissanite the same as cubic zirconia? How to tell moissanite from cz?
Moissanite and cubic zirconia are not the same. Moissanite vs cubic zirconia differs in optical properties and durability. To tell them apart, check for the unique sparkle of moissanite, which is often more fiery than CZ.
Which is better, moissanite or cubic zirconia?
Moissanite is generally considered better due to its superior durability, brilliance, and fire compared to cubic zirconia. It is a more long-lasting option for engagement rings and fine jewelry.
Is zirconia expensive? How much is cubic zirconia worth?
Cubic zirconia is relatively inexpensive, typically costing between $20 to $50 per carat, making it an affordable choice for jewelry.
How can you tell difference between diamond and cubic zirconia?
You can distinguish diamond from cubic zirconia by examining them under a microscope. Cubic zirconia vs diamond under microscope reveals that diamonds have natural inclusions, while CZ tends to be flawless.
How long do cubic zirconias last? Does cubic zirconia sparkle? How to keep cubic zirconia shiny?
Cubic zirconia can last for several years if cared for properly. It does sparkle, although not as much as a diamond. To keep it shiny, clean it regularly with mild soap and a soft cloth, avoiding harsh chemicals.